Shopify Store Admin

I have a Shopify store but I'd like to change the niche and theme of current store into a new niche. You will be required t do the following::
1. Add new products descriptions and pictures to a Shopify store and delete old products.
2. Optimize products pages to be more marketable.
3. Add theme and background pictures to the Shopify store.
4. You must have experience supporting or being an admin for a Shopify store as there will be a deadline.
5. This is a one time job and not ongoing.
6. Please apply to this job mentioning "Shopify Store Admin" in the email title as I have multiple jobs posted.